A malicious worm that targets poorly protected home routers has been uncovered by security researchers.
The "moose" malware tries to take over home routers by trying thousands of weak passwords.
Once it has taken over a device, the worm grabs login details when people visit Twitter, Facebook, Instagram, YouTube and other social sites.
These credentials are then used to artificially inflate followers and viewer numbers.
"This threat is all about social network fraud," said researchers Olivier Bilodeau and Thomas Dupuy from security firm Eset in a report detailing their findings.